I prostrate myself at the feet of the world’s greatest living comedian. Jonnie Marbles, aka Jonathan May-Bowles, the man who was slapped down by Wendi Deng – never mess with a Chinese wife, folks – is the latest jerk to appear on the Guardian's Comment is Free, explaining why he threw a pie at Rupert Murdoch:

Yes it's true that Murdoch's power is waning. But it's also true that he will never face real justice. Yesterday's select committee hearing was a farce before the foam ever left my fingers: a toothless panel confronting men too slippery to be caught between their gums.

I was filled with hope as Tom Watson questioned Murdoch Sr relentlessly with the passion and vigour we might expect to be the norm when our elected representatives face down the perpetrators of a modern Watergate. For a few bright moments I thought I might see justice done, keep the pie in my bag and spare myself a night in jail.

Those moments were short lived: as committee member after committee member feebly prodded around the issues and Murdoch Jr began to dominate, I knew I was going to have to make a massive tit of myself.

To be honest, I had not expected to get so far, but parliamentary security, with its machine-gun toting cops and scatter X-rays, is apparently no match for a man with some shaving-foam covered plates in his bag.

Well, it will be in the future, thanks to you. As David Allen Green wrote in the New Statesman, this will result in ever tighter security around Parliament, further widening the gulf between rulers and ruled, making life just a bit more unpleasant for those who like living in a liberal democracy.

And as Green points out, it wasn’t even funny. Only Belgians find this kind of thing amusing, which is up there with mime acts in the guffawing stakes. There's more evidence of his bad comedy here.

Not only is it not especially funny, it’s mildly totalitarian. Yesterday’s select committee hearing may have lacked teeth – there were an awful lot of tedious, irrelevant questions – but ultimately it was up to our elected representatives, through due process, to bring about justice, even if it is imperfect.

I’m generally not a great fan of direct action, largely because in a democracy it’s (usually) morally unjustified and can easily become bullying, intimidation or violence, even when the intention is noble. But as it’s largely self-defeating and counter-productive, because any good work is overshadowed by the behaviour of the biggest prats, I’m happy for political opponents to employ it. Well done, Jonnie Marbles, you couldn’t have done a better job of discrediting the Left if you tried.